| 摘要 |
PURPOSE:To allow acknowledging the operating condition of a load to be manipulated in multiple places. CONSTITUTION:A separate switch SW of two-contact changeover type is provided to make on/off operation of a load L, and a one or ones provided regularly turn on and off the same load L in cooperation with this switch SW. Besides output terminals T1, T2 with which normally a series circuitry of power supply AC and load L is connected, a feed terminal T3 is furnished. Contacts (a, b) of the separate switch SW are connected with the output terminal T2 and feed terminal T3, and the power supply AC and load L, are connected between the common contact (c) and output terminal T1. A neon lamp Ne and light emitting diode LD to make the operational display according to the switch body S1 being turned on or off are installed in the position to display the operation of the load L due to the switch body S1 and separate switch SW. Accordingly the light enitting diode LD lighted up even when the load L is turned on by separate switch SW, and the operating condition of the load L is displayed. |
